///In order to clear the coupling relationship between sedimentary and tectonic evolution in the Denglouku Formation in Gulong area of northern Songliao Basin, the authors use seismic, drilling, logging and core data of Gulong area to analysis the control function of tectonic evolution to sedimentary filling characteristics in Denglouku Formation of Gulong area, the results show that in Denglouku Formation of Gulong area the depositional period is fault-depressed diversionary, also can be further divided into four tectonic evolution stage, which is early and late shrinking stage in fault basin, early and late embryonic stage in depression basin, corresponding to the four third-order sequence (Sq1-Sq4). The concrete embody: in early(Sq1)and late(Sq2)shrinking stage, lower strata of fault basin was controlled by fault, the sedimentary filling characteristics accord with the sedimentary evolution mode of terrestrial rift-subsidence lacustrine basin.